There and Back Again

AJAX library for php with a focus on doing all the coding php side. Allows for very clean html, as all the javascript is generated from your php classes. Basic development is object oriented and widget based. So on the javascript side you just attach your widgets to dom elements based on id. This leaves the heavy lifting to happen in php or in some other javascript library your pulling in. AjaxAC include code to auto generate various callbacks which is quite handy. The biggest problem I see is that if you don't create a javascript utility library you end up having to write lots of javascript inside php strings which is a mess to debug especially since it will spit out with other generated code making errors hard to track down.

AJAX implementation supporting PHP & ASP, dual licensed under GPL and LGPL. Calls are made using cpaint_call function in javascript which you provide a remote page, method, function to call, arguments, callback function, and return type. This makes for rather complex calls but for basic return types it can be fast since you can return a single item directly as text. For complex types functions are provided for creating a custom xml format in PHP or ASP.

Cake is a well done port of the Ruby on Rails framework to PHP. This includes all its AJAX integration with the prototype js lib. AJAX integration is all done through easy to use helper functions, but its not really standalone so if you don't want to use the entire framework its not really a solution.

Provides Cross Browser XMLHttpRequest based AJAX support, synchronous and asynchronous operation is supported. An object oriented api is offered to both JavaScript and PHP sides. Basic operation on the server side is provided by a server page where php objects you want to export are registered, this page is included in html pages with a client flag which generates proxy javascript classes with the same api as the php class (all class and method names are lowercase). Calls are made by creating an instance of the javascript class and then calling its methods. In async operation a callback class is specified when the instance is created, results are sent to methods with the same name as the called method. Provides complex datatype (multi-dimensional arrays and object) serialization and support for passing php errors to javascript, with configurable error handling on the javascript side.

Supports: ASP, Cold Fusion, Io, Lua, PHP, Perl, Python and Ruby, asynchronous operation only. Provides Cross Browser XMLHttpRequest based AJAX support, provides a procedural JS api. Works by registering functions to export on the serverside which generates javascript to put into your HTML pages. The functions are exported with a x_ prefix, functions then work like normal javascript except the last paramater is a callback function for the result.